Austin Butler had to juggle his commitments on ‘The Bikeriders’ and ‘Dune: Part Two’. The 32-year-old star plays Benny in the new film about about a Chicago motorcycle club and explained that he had to work on the project while also starring in the contrasting role of antagonist Feyd-Rautha Harkonnen in Denis Villeneuve’s sci-fi sequel. Speaking to The Hollywood Reporter, Austin said: “That was the tricky part to figure out. I knew that I was going to do both films before I started ‘Dune’, but I had to figure out how to front-load the prep on ‘Bikeriders’ and start training on a motorcycle. “S…